1020808 has 8 divisors (see below), whose sum is σ = 1914030. Its totient is φ = 510400.

The previous prime is 1020797. The next prime is 1020821. The reversal of 1020808 is 8080201.

It is a happy number.

1020808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 842724 + 178084 = 918^2 + 422^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63793 + ... + 63808.

2^1020808 is an apocalyptic number.

It is an amenable number.

1020808 is a deficient number, since it is larger than the sum of its proper divisors (893222).

1020808 is a wasteful number, since it uses less digits than its factorization.

1020808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127607 (or 127603 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1020808 is about 1010.3504342554. The cubic root of 1020808 is about 100.6888440435.

The spelling of 1020808 in words is "one million, twenty thousand, eight hundred eight".